<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>闲来无事练练手</title>
	<style type="text/css">
#BOX{
	width: 300px;
	height: 300px; 
}	
	</style>
</head>
<body>
	  <div id="BOX">
	 就会发
	  </div>
</body>
</html>